Respiratory ventilation device

Abstract

The present application provides a respiratory ventilation device for delivering respiratory gas to a patient interface. The respiratory ventilation device includes: a gas pressurization unit positioned in the main body of the respiratory ventilation device; a humidification component removably connected to the main body of the respiratory ventilation device. The humidification component includes a liquid chamber for containing one or more liquids, and the liquid chamber is detachably connected to the main body of the respiratory ventilation device through a push-push mechanism.

Description

[0001] This application is a divisional application of a Chinese patent application with application number 201880093168.8, application date October 26, 2018, and title "Systems and Methods for Delivering Respiratory Gas". Technical Field

[0002] This application generally relates to the detection, diagnosis, treatment, prevention, and improvement of respiratory-related disorders, and more particularly, to respiratory ventilation devices. Background Art

[0003] Respiration is important for maintaining the life of a subject (such as a human body). The respiratory system of a subject facilitates gas exchange. The nose and / or mouth of a subject form the entrance of the airway of the subject. There are a series of respiratory disorders (such as apnea, hypopnea, hyperventilation, snoring, etc.). Respiratory disorders may threaten the health (and / or life) of a subject. Therefore, it is desirable to develop systems and methods for delivering respiratory gas to a subject. Summary of the Invention

[0004] The object of this application is to provide a respiratory ventilation device.

[0005] To achieve the above object, on the one hand, this application provides a respiratory ventilation device configured to deliver respiratory gas to a patient interface. The respiratory ventilation device may include: a gas pressurizing unit positioned in the main body of the respiratory ventilation device; a humidifying component detachably connected to the main body of the respiratory ventilation device, the humidifying component including a liquid chamber configured to hold one or more liquids; wherein the liquid chamber is detachably connected to the main body of the respiratory ventilation device through a push-push mechanism.

[0006] In some embodiments, the gas pressurizing unit may be configured to generate pressurized respiratory gas by pressurizing the respiratory gas, wherein the main body of the respiratory ventilation device includes a housing having a first sidewall configured to discharge the pressurized respiratory gas; a humidifying component that may be configured to humidify the pressurized respiratory gas; the respiratory ventilation device may further include: a gas inlet for introducing the respiratory gas into the respiratory ventilation device, the gas inlet being provided on a second sidewall of the housing of the main body of the respiratory ventilation device; and a gas outlet configured to discharge the humidified and pressurized respiratory gas into a breathing tube.

[0007] In some embodiments, the push-push mechanism may include: a guiding groove provided on the main body of the respiratory ventilation device; a slider provided on the main body of the respiratory ventilation device, the slider being located within the guiding groove and capable of moving back and forth along the guiding groove in a first direction; and a push rod provided on the liquid chamber, the push rod being capable of moving back and forth in a second direction perpendicular to the first direction; wherein the slider may include a guiding block, the guiding block including a first inclined surface, a groove, and a second inclined surface, the guiding block being configured to guide or limit the moving position of the push rod.

[0008] In some embodiments, the inclination direction of the first inclined surface may be different from the inclination direction of the second inclined surface; a first angle between the first inclined surface and the vertical direction may be greater than a second angle between the second inclined surface and the vertical direction.

[0009] In some embodiments, the guiding block may have a frame similar to the letter A.

[0010] In some embodiments, the push-push mechanism may further include: a first spring including a first end and a second end, the first end of the first spring being connected to the first end of the guiding block, the second end of the first spring being fixed to the main body of the respiratory ventilation device; and a second spring including a first end and a second end, the first end of the second spring being connected to the second end of the guiding block, the second end of the second spring being fixed to the main body of the respiratory ventilation device; wherein, when the guiding block is driven to move in the first direction, the first spring may be compressed; and the compressed first spring is capable of driving the guiding block to move in the opposite direction of the first direction.

[0011] In some embodiments, when driven by a first driving force, the push rod is capable of pushing the guiding block to move in the first direction, while the push rod moves in the second direction and slides downward along the first inclined surface of the guiding block; when the first driving force is released, the push rod is capable of moving in a direction opposite to the second direction, while the guiding block moves in a direction opposite to the first direction, such that the push rod snaps into the groove of the guiding block; when driven by a second driving force, the push rod is capable of moving in the second direction and moving out of the groove, while the guiding block moves in the opposite direction of the first direction, such that the push rod is released from the groove; and when the second driving force is released, the push rod is capable of moving in the opposite direction of the second direction and sliding upward along the second inclined surface of the guiding block, while the guiding block moves in the opposite direction of the first direction, such that the liquid chamber is released from the main body.

[0012] In some embodiments, the slider may further include a bump located below the groove of the guiding block, and the bump is configured to guide the push rod to snap into the groove when the first thrust is released.

[0013] In some embodiments, the push rod may be disposed below the bottom surface of the liquid chamber; the guiding groove and the slider may be disposed below the interface between the liquid chamber and the main body of the breathing ventilator; the plate located on the interface may include a first hole; and the push rod can pass through the first hole to interact with the slider.

[0014] In some embodiments, the plate located on the interface may include a second hole; the humidifying component may further include a heating plate configured to heat one or more liquids and generate steam to humidify the pressurized breathing gas; and the heating plate can be mounted on the base of the breathing ventilator through one or more springs, such that the heating plate can move up and down through the second hole when driven by pressure or when the pressure is released.

[0015] In some embodiments, the push-push mechanism may be configured to unlock the liquid chamber from the main body of the breathing ventilator by pushing the liquid chamber along a pushing direction substantially perpendicular to the liquid level in the liquid chamber. Since pushing is easier than pulling and can be performed with one hand, the comfort of the user is improved. In addition, any locking and / or connecting mechanism between the liquid chamber and the main body will be subjected to less pulling force and its lifespan is increased, because such a mechanism can generally withstand a higher pushing force than a pulling force. In addition, push-unlocking also reduces the possibility of liquid spilling from the box during disassembly.

[0016] In some embodiments, the push-push mechanism may be configured to include an energy storage device for storing the energy of the pushing action and for releasing the stored energy by applying a force on the liquid chamber along a direction substantially opposite to the pushing direction after the liquid chamber is unlocked.

[0017] In some embodiments, the liquid chamber may include: a box body; and a box cover, the box cover being pivotally connected to the box body through a connecting mechanism; wherein, the box cover may be configured to be closed by pushing along the pushing direction and / or configured to be opened by pulling along a direction substantially opposite to the pushing direction. Since the box cover can be closed in the same direction, a single pushing action can close the box cover and simultaneously connect the liquid chamber to the main body, thereby increasing comfort. When the box cover is opened in the opposite direction, the chance for the user to confuse opening the box cover and removing the liquid chamber from the main body is minimized, thereby avoiding the situation where the user only intends to disconnect the humidifying component but accidentally opens the box cover and pours out the liquid.

[0018] On the other hand, the present application provides a respiratory ventilation device, including: a gas pressurizing unit positioned in the main body of the respiratory ventilation device, the gas pressurizing unit being configured to generate pressurized respiratory gas; a liquid chamber configured to contain one or more liquids to humidify the pressurized respiratory gas; wherein, driven by a first thrust force, the liquid chamber is installed on the main body of the respiratory ventilation device through a push-push mechanism, and driven by a second thrust force, the liquid chamber is released from the main body of the respiratory ventilation device through the push-push mechanism, and the direction of the first thrust force is the same as the direction of the second thrust force.

[0019] In some embodiments, the liquid chamber is included in a humidifying component, and the humidifying component is removably connected to the main body of the respiratory ventilation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application is further described according to exemplary embodiments. These exemplary embodiments are described in detail with reference to the accompanying drawings. The drawings are not drawn to scale. These embodiments are non-limiting exemplary embodiments, in which the same reference numerals represent similar structures in several views of the drawings, and wherein:

[0021] Figure 1 An exemplary respiratory ventilation device according to some embodiments of the present disclosure is shown;

[0022] Figure 2A and Figure 2B An exploded view of an exemplary liquid chamber according to some embodiments of the present disclosure is shown;

[0023] Figure 3 An exemplary push-push mechanism connected to the liquid chamber of a respiratory ventilation device according to some embodiments of the present disclosure is shown;

[0024] Figure 4A and Figure 4BShows an exemplary push - push mechanism according to some embodiments of the present disclosure;

[0025] Figure 5A and Figure 5B Shows an exemplary process of mounting a liquid chamber on the body of a breathing ventilation device according to some embodiments of the present disclosure by means of a push - push mechanism;

[0026] Figure 5C and Figure 5D Shows an exemplary process of removing a liquid chamber from the body of a breathing ventilation device according to some embodiments of the present disclosure by means of a push - push mechanism;

[0027] Figures 6A to 6D Shows an exemplary heating plate according to some embodiments of the present disclosure;

[0028] Figures 7A to 7D Shows an exemplary connection between a liquid chamber and the body of a breathing ventilation device according to some embodiments of the present disclosure;

[0029] Figure 8 Shows another exemplary connection between a liquid chamber and the body of a breathing ventilation device according to some embodiments of the present disclosure;

[0030] Figure 9 Shows an exemplary connecting member fixed to the body of a breathing ventilation device according to some embodiments of the present disclosure;

[0031] Figures 10A to 10C Shows an exemplary connection between a liquid chamber and the body of a breathing ventilation device according to some embodiments of the present disclosure;

[0032] Figure 11 Shows an exemplary connection between a connecting member and a connecting plate of a box cover when the box cover is closed according to some embodiments of the present disclosure;

[0033] Figures 12A to 12E Shows an exemplary threaded hose of a connecting member according to some embodiments of the present disclosure;

[0034] Figures 13A to 13D Shows an exemplary substrate of a breathing ventilation device according to some embodiments of the present disclosure;

[0035] Figure 14A and Figure 14B Shows an exemplary liquid chamber of a breathing ventilation device according to some embodiments of the present disclosure;

[0036] Figure 15 Shows an exemplary box cover of a liquid chamber of a breathing ventilation device according to some embodiments of the present disclosure;

[0037] Figures 16A to 16C Shows an exemplary housing of a liquid chamber of a breathing ventilation device according to some embodiments of the present disclosure;

[0038] Figure 17A And Figure 17B Shows an exemplary housing according to some embodiments of the present disclosure;

[0039] Figure 18A And Figure 18B Shows an exemplary lid according to some embodiments of the present disclosure;

[0040] Figure 19A And Figure 19B Shows the mating of the protruding column of the first connecting member of the housing and the groove of the second connecting member of the lid according to some embodiments of the present disclosure;

[0041] Figure 20A And Figure 20B Shows an exemplary connection of the lid of the liquid chamber and the housing according to some embodiments of the present disclosure;

[0042] [[ID=,28]] Figure 21A And Figure 21B Shows an exemplary lid according to some embodiments of the present disclosure;

[0043] Figure 22 Shows an exemplary cover shell according to some embodiments of the present disclosure;

[0044] Figure 23A And Figure 23B Shows an exemplary inner shell of the lid according to some embodiments of the present disclosure;

[0045] Figure 24 [[ID=,45]]Shows an exemplary bottom plate of the inner shell of the lid according to some embodiments of the present disclosure;

[0046] Figure 25A And Figure 25B Shows an exemplary internal structure of the inner shell of the lid according to some embodiments of the present disclosure;

[0047] Figure 26A And Figure 26B Shows another exemplary lid according to some embodiments of the present disclosure;

[0048] Figure 27A And Figure 27B Shows an exemplary heating device according to some embodiments of the present disclosure; and

[0049] Figure 28 Shows an exemplary liquid chamber according to some embodiments of the present disclosure. Detailed embodiments

[0050] The terms used herein are for the purpose of describing particular exemplary embodiments only and are not limiting. As used herein, the singular forms "a", "an" and "the" may include the plural forms unless the context clearly dictates otherwise. It is further to be understood that the terms "comprises" and / or "comprising" used in this application specify the stated features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups.

[0051] These and other features of the present application, as well as the operations and functions of the related elements of the structure and the combination and manufacturing economy of the components, may become more apparent in view of the following description. Reference is made to the accompanying drawings, which all form a part of this application. However, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of the present application. It is to be understood that the drawings are not drawn to scale.

[0052] In the present application, the breathing gas may include natural air (or ambient air), purified air, oxygen, oxygen-enriched atmosphere, therapeutic drugs, pressurized air, humidified air, etc., or a combination thereof. In some embodiments, the respiratory ventilator device may be a non-invasive ventilator. The respiratory ventilator device may be configured to detect, diagnose, treat, prevent, and / or improve a respiratory-related condition of an object. In some embodiments, the respiratory ventilator device may deliver pressurized breathing gas to the object (e.g., the object's nose and / or mouth). In some embodiments, the object may be a healthy person. In some embodiments, the object may be a patient. In some embodiments, the patient may suffer from one or more respiratory-related conditions. In some embodiments, the respiratory-related condition may be characterized by apnea, hypopnea, or hyperventilation, etc. Exemplary respiratory-related conditions may include, for example, obstructive sleep apnea (OSA), Cheyne-Stokes respiration (CSR), obesity hypoventilation syndrome (OHS), chronic obstructive pulmonary disease (COPD), neuromuscular disease (NMD), chest wall disease, etc. Obstructive sleep apnea (OSA) is a form of sleep breathing disorder and may cause the affected patient to stop breathing for one or more periods (e.g., lasting 30 to 120 seconds, or 200 to 300 times per night). Cheyne-Stokes respiration (CSR) is another form of sleep breathing disorder and may be harmful due to repetitive hypoxia. Obesity hypoventilation syndrome (OHS) is defined as a combination of severe obesity and chronic hypercapnia in the waking state and may cause dyspnea, morning headache, excessive daytime sleepiness, etc. Chronic obstructive pulmonary disease (COPD) may include an increase in resistance to air movement, an extended expiratory phase of breathing, or a loss of normal elasticity of the lungs, etc. Chronic obstructive pulmonary disease (COPD) may cause dyspnea during exertion, chronic cough, sputum production, etc. Neuromuscular disease (NMD) may include diseases and disorders that directly or indirectly impair muscle function through intrinsic muscle pathology or through neuropathy. Neuromuscular disease (NMD) may cause general weakness, dysphagia, dyspnea during movement and rest, fatigue, drowsiness, morning headache, inattention, and mood changes, etc. Chest wall disease is a group of chest deformities that result in an inefficient coupling between the respiratory muscles and the thoracic cage. Chest wall disease may cause dyspnea during exertion, peripheral edema, orthopnea, recurrent chest infections, morning headache, fatigue, poor sleep quality, loss of appetite, etc.

[0053] In some embodiments, the patient interface may be configured to connect the respiratory ventilator device to the object, for example, by providing a breathing gas flow (e.g., air). In some embodiments, the patient interface may include a gas channel for guiding the breathing gas. The patient interface may include a face mask, a tube, etc. In some embodiments, the breathing tube may be configured to guide the breathing gas from the respiratory ventilator device to the patient interface. The breathing tube may include a gas channel for guiding the breathing gas.

[0054] A breathing ventilation device may include a gas pressurizing unit and a humidifying component. The gas pressurizing unit may be configured to pressurize the breathing gas introduced into the breathing ventilation device. In some embodiments, the gas pressurizing unit may generate pressurized breathing gas based on the introduced ambient gas (e.g., atmosphere). In some embodiments, the gas pressurizing unit may provide pressurized breathing gas to an object. In some embodiments, the gas pressurizing unit may include a blower (e.g., a motor-driven blower). In some embodiments, the gas pressurizing unit may include a compressed gas reservoir. The humidifying component may be configured to humidify the (pressurized) breathing gas. In some embodiments, the humidifying component may humidify the (pressurized) breathing gas by introducing water vapor into the (pressurized) breathing gas.

[0055] In some embodiments, the breathing ventilation device may further include a noise reduction component, which may be configured to reduce the noise generated by the operation of the gas pressurizing unit (e.g., blower) and / or the flow of the breathing gas. In some embodiments, the noise reduction component may include a noise reduction box that houses the gas pressurizing unit. In some embodiments, the noise reduction box may include one or more types of sound-absorbing materials provided on the inner wall of the noise reduction box. In some embodiments, the noise reduction box may include one or more frames configured to fix one or more sound-absorbing materials. Exemplary sound-absorbing materials may include organic fibers, inorganic fibers, inorganic foams, foamed plastics, etc., or any other material having a sound-absorbing function.

[0056] Figure 1 An exemplary breathing ventilation device according to some embodiments of the present disclosure is shown. The breathing ventilation device 1700 may include a main body 1702 and / or a humidifying component. In some embodiments, the humidifying component may be arranged to humidify the pressurized breathing gas to produce pressurized and humidified breathing gas. In some embodiments, the humidifying component may include a liquid chamber 1704, a heating plate 1710, and a heat conducting plate 1810 (see Figure 2A and 2B ). The liquid chamber 1704 may be configured to hold one or more liquids (e.g., water and / or medicine). The heat conducting plate may be configured to conduct heat from the heating plate 1710 to heat the one or more liquids and generate steam to humidify the pressurized breathing gas. In some embodiments, the heat conducting plate may be provided at the bottom of the liquid chamber 1704. In some embodiments, the heat conducting plate may include a metal heat conducting material.

[0057] In some embodiments, the main body 1702 may include a gas pressurizing unit positioned in the main body 1702 ( Figure 1(not shown in the figure), a gas inlet 1706, a gas outlet 1708, and / or a support plate 1707. In some embodiments, the gas inlet 1706 and / or the gas outlet 1708 may be disposed on the first interface between the main body 1702 and the liquid chamber 1704. In some embodiments, the support plate 1707 may be disposed on the second interface between the main body 1702 and the liquid chamber 1704. In some embodiments, the support plate 1707 may be fixed to the substrate of the main body 1702. In some embodiments, the first interface between the main body 1702 and the liquid chamber 1704 (see Figures 7A - 7D ) may refer to the side surface of the main body 1702 and the corresponding side surface of the liquid chamber 1704. In some embodiments, the second interface between the main body 1702 and the liquid chamber 1704 (see Figures 1 - 5D ) may refer to the bottom surface of the liquid chamber 1704 and the corresponding surface of the support plate 1707 of the main body 1702. In some embodiments, the gas outlet 1708 may be configured to discharge pressurized breathing gas from the main body 1702 into the liquid chamber 1704. In some embodiments, the gas inlet 1706 may be configured to draw the pressurized and humidified breathing gas from the liquid chamber 1704 back into the main body 1702. In some embodiments, the support plate 1707 may include a first hole 1709 and / or a second hole 1711. In some embodiments, the first hole 1709 and / or the second hole 1711 may be disposed on the second interface. In some embodiments, at least a portion of the heating plate 1710 may be disposed in the second hole 1711.

[0058] The heating plate 1710 may be configured to heat one or more liquids in the liquid chamber 1704 and / or generate steam to humidify the pressurized breathing gas. In some embodiments, the heating plate 1710 may be mounted on the base of the main body 1702 by one or more springs 2202 (see Figure 6C ). The heating plate 1710 is capable of moving up and down through the second hole 1711 when being pressure-driven or when the pressure is released.

[0059] In some embodiments, the liquid chamber 1704 may be detachably connected to the main body 1702 such that the humidifying component can be detachably connected to the main body 1702. For example, the liquid chamber 1704 may be detachably connected to the main body 1702 via a hole (such as the first hole 1709) of the support plate 1707 by a push-push mechanism (see Figures 3 - 5D ). If the liquid chamber 1704 is mounted on the main body 1702 of the breathing ventilation device 1700, the bottom of the liquid chamber 1704 (such as the heat conducting plate of the liquid chamber 1704) may be in close contact with the heating plate 1710. More descriptions of the humidifying component can be found in other parts of the present disclosure (such asFigure 2A and 2B and its description).

[0060] Figure 2A and 2B shows an exploded view of an exemplary liquid chamber according to some embodiments of the present disclosure. In some embodiments, as Figure 2A and 2B shown, the liquid chamber 1704 may include a lid and a box body. In some embodiments, the lid may include a lid housing 1802 and one or more gas channels 1805. In some embodiments, the box body may include a box housing 1808, a heat conducting plate gasket 1809, and a heat conducting plate 1810. It should be noted that, in some embodiments, the gas channel 1805 may be provided in the box. In some embodiments, the liquid chamber 1704 may include a fixing gasket 1806 and / or a lid gasket 1807 located between the box body and the lid. The fixing gasket 1806 and / or the lid gasket 1807 may be configured to enable a sealed connection between the box body and the lid. In some embodiments, the liquid chamber 1704 may include a connecting plate 1803 and / or a gas channel gasket 1804 to cooperate with the main body 1702.

[0061] In some embodiments, the components of the liquid chamber 1704 may be detachably connected. For example, the connecting plate 1803 may be disposed on and / or fixed to the lid housing 1802 by bonding, riveting, tenoning, clamping, meshing, etc. or any combination thereof. As another example, the gas channel gasket 1804 may be connected and / or fixed to the gas channel 1805. As another example, the fixing gasket 1806 and / or the lid gasket 1807 may be disposed on and / or fixed to the box housing 1808 to improve the airtightness between the lid housing 1802 and the box housing 1808. In some embodiments, the fixing gasket 1806 may be disposed within the lid gasket 1807. As another example, the heat conducting plate gasket 1809 may be disposed between the heat conducting plate 1810 and the bottom frame of the box housing 1808. As yet another example, the heat conducting plate 1810 may be connected to the heat conducting plate gasket 1809 by bonding, riveting, tenoning, clamping, meshing, etc. or any combination thereof. As yet another example, the heat conducting plate gasket 1809 may be fixed to the bottom frame of the can housing 1808 by bonding, riveting, tenoning, clamping, meshing, etc. or any combination thereof.

[0062] Figure 3An exemplary push-push mechanism connected to a liquid chamber of a breathing ventilation device according to some embodiments of the present disclosure is shown. In some embodiments, the push-push mechanism 1904 may be disposed below the support plate 1707. In some embodiments, the housing 1808 of the liquid chamber 1704 may be detachably connected to the push-push mechanism 1904 through a push rod 1906. In some embodiments, the push rod 1906 may be disposed below the bottom surface of the liquid chamber 1704.

[0063] In some embodiments, the liquid chamber 1704 may be driven by a first driving force. When the first thrust is released, the push rod 1906 may be locked with the push-push mechanism 1904, so that the liquid chamber 1704 can be mounted on the main body 1702 of the breathing ventilation device 1700. If the liquid chamber 1704 is driven by a second thrust and when the second thrust is released, the push rod 1906 may be removed from the push-push mechanism 1904, so that the liquid chamber 1704 can be released from the main body 1702 of the breathing ventilation device 1700. In some embodiments, the direction of the first thrust may be the same as the direction of the second thrust. For example, the direction of the first thrust and the direction of the second thrust may be vertically downward. In some embodiments, the push-push mechanism 1904 may be disposed on the side of the first interface between the main body 1702 and the liquid chamber 1704. Then, the first thrust and the second thrust may be in the horizontal direction.

[0064] <{ Figure 4A and 4B An exemplary push-push mechanism according to some embodiments of the present disclosure is shown. Figure 4A An isometric view of the push-push mechanism 1904 is shown. Figure 4B An exploded view of the push-push mechanism 1904 is shown. In some embodiments, as Figure 4A and 4B shown, the push-push mechanism 1904 may include a guide groove 2002, a slider 2004, a first spring 2006, a second spring 2008, and a push rod 1906 (see Figure 3 ) etc.

[0065] The guiding groove 2002 can be configured to accommodate the first spring 2006 and the second spring 2008 and guide the movement of the slider 2004. In some embodiments, the guiding groove 2002 can be provided on the body of the respiratory ventilator 1700 (such as the body 1702). For example, the guiding groove 2002 can be provided below the support plate 1707 of the body of the respiratory ventilator 1700 (such as the body 1702). In some embodiments, the guiding groove 2002 can be fixed to the body (such as the body 1702) by adhesion, riveting, tenoning, clamping, meshing, etc. or any combination thereof. In some embodiments, the guiding groove 2002 can be made of materials such as cast iron, stainless steel, non-ferrous metals, plastics, etc. or any combination thereof.

[0066] The slider 2004 can be mounted on the guiding groove 2002. In some embodiments, the slider 2004 can move back and forth in the first direction along the guiding groove 2002. In some embodiments, the first direction can be parallel to the guiding groove 2002. In some embodiments, the slider 2004 can include a guiding block 2005. The guiding block 2005 can be configured to guide or limit the movement position of the push rod 1906. In some embodiments, as Figure 4A and 4BAs shown, the guiding block 2005 may have a frame similar to the character A. In some embodiments, the guiding block 2005 may include a frame different from the character A (such as the frame of the character N or M, etc.). In some embodiments, the guiding block 2005 may include a first inclined surface 2015, a groove 2035, a second inclined surface 2025, and a third inclined surface 2055. In some embodiments, the third inclined surface 2055 may be substantially vertical. In some embodiments, the inclination direction of the first inclined surface 2015 may be different from the inclination direction of the second inclined surface 2025. In some embodiments, the first angle between the first inclined surface 2015 and the vertical direction may be greater than the second angle between the second inclined surface 2025 and the vertical direction. The first inclined surface 2015, the second inclined surface 2025, and / or the third inclined surface 2055 may be configured to guide the moving position of the push rod 1906. The groove 2035 may be configured to limit the moving position of the push rod 1906. In some embodiments, the guiding block 2005 may include a first protrusion 2065, a second protrusion 2075, and / or a third protrusion 2085. The first protrusion 2065 and / or the second protrusion 2075 may be configured to prevent the push rod 1906 from moving out of the groove 2035 when the liquid chamber 1704 is mounted on the main body 1702, so that the liquid chamber 1704 can be fixed to the main body 1702. In some embodiments, the first protrusion 2065 and / or the second protrusion 2075 may be sharp. In some embodiments, the bottom end of the first protrusion 2065 may be lower than the bottom end of the second protrusion 2075. In some embodiments, the first protrusion 2065 and the second protrusion 2075 may be arranged on the same side of the third protrusion 2085 in the horizontal direction.

[0067] In some embodiments, the slider 2004 may further include a protrusion 2045 (or bump) located below the groove 2035 of the guiding block 2005. The protrusion 2045 may include a first inclined surface and a second inclined surface. The first inclined surface of the protrusion 2045 may be close to the first inclined surface of the guiding block 2005. The second inclined surface of the protrusion 2045 may be close to the second inclined surface of the guiding block 2005. In some embodiments, the groove 2035 may limit the moving position of the push rod 1906 by cooperating with the protrusion 2045. In some embodiments, the slider 2004 may be made of materials such as cast iron, stainless steel, non-ferrous metals, plastics, etc., or any combination thereof. In some embodiments, the material of the slider 2004 may be the same as or different from the material of the guiding groove 2002.

[0068] The first spring 2006 and the second spring 2008 can be disposed in the guiding groove 2002. The first spring 2006 can include a first end and a second end. The first end of the first spring 2006 can be connected to the first end of the guiding block 2005. The second end of the first spring 2006 can be fixed to the body of the respiratory ventilation device 1700 (such as the body 1702). The second spring 2008 can include a first end and a second end. The first end of the second spring 2008 can be connected to the second end of the guiding block 2005. The second end of the second spring 2008 can be fixed to the body of the respiratory ventilation device (such as the body 1702). In some embodiments, the first spring 2006 can be the same as or different from the second spring 2008 in terms of, for example, material (such as carbon steel or alloy steel), type (such as helical spring, wave spring, special-shaped spring or conical spring), size, etc., or any combination thereof.

[0069] In some embodiments, the first spring 2006 and the second spring 2008 can be configured to guide the moving direction of the guiding block 2005 (or the slider 2004). In some embodiments, if the guiding block 2005 (or the slider 2004) is driven to move in the first direction (such as Figure 4B the direction shown by the solid arrow in ), the second spring 2008 can be compressed. The compressed second spring 2008 is capable of driving the guiding block 2005 (or the slider 2004) to move in the opposite direction of the first direction (such as, Figure 4B the direction shown by the dashed arrow in ). Additionally or alternatively, if the guiding block 2005 (or the slider 2004) is driven to move in the opposite direction of the first direction, the first spring 2006 can be compressed. The compressed first spring 2006 is capable of driving the guiding block 2005 (or the slider 2004) to move in the first direction. In some embodiments, the first spring 2006 can be omitted.

[0070] In some embodiments, the push rod 1906 may include a first end and a second end. The first end of the push rod 1906 may be mounted on the liquid chamber 1704 (such as the housing 1808). The second end of the push rod 1906 may cooperate with the guide block 2005. In some embodiments, the push rod 1906 may move back and forth in the second direction. In some embodiments, the second direction may be perpendicular to the first direction of movement of the guide block 2005 (or the slider 2004). In some embodiments, the second end of the push rod 1906 may include a fixing structure, such as a protrusion (such as a cylinder). In some embodiments, the second end of the push rod 1906 may include a rotatable structure, such as a bearing assembly. In some embodiments, the second end of the push rod 1906 including the fixing structure can slide along the first inclined surface 2015, the third inclined surface 2055, the groove 2035 and the second inclined surface 2025 of the guide block 2005. In some embodiments, the second end of the bolt 1906 including the rotatable structure can roll along the first inclined surface 2015, the third inclined surface 2055, the groove 2035 and the second inclined surface 2025 of the guide block 2005.

[0071] Figure 5A and 5B illustrates an exemplary process for mounting a liquid chamber on a body of a respiratory ventilation device by a push-push mechanism according to some embodiments of the present disclosure. As Figure 5AAs shown, the liquid chamber 1704 can be driven by a first thrust and then installed on the main body 1702. In some embodiments, the first thrust can be generated by a user (such as the subject 180). The direction of the first thrust can be indicated by arrow A (for example, the vertical direction, also referred to as the second direction). In some embodiments, the push rod 1906 can pass through the first hole 1709 and interact with the guiding block 2005. In some embodiments, in its natural state, the central position of the push rod 1906 can be located on the right side of the bottom of the second protrusion 2075 along the first direction. When driven by the first thrust, the push rod 1906 can move along the second direction (indicated by arrow A) together with the liquid chamber 1704 and slide downward along the first inclined surface 2015 of the guiding block 2005. Therefore, when the push rod 1906 moves downward, the push rod 1906 can push the guiding block 2005 to move along the first direction (indicated by arrow B) and can compress the second spring 2008. At the same time, the compressed second spring 2008 can generate a reaction force, which is used to press the push rod 1906 by the guiding block 2005. In some embodiments, the first direction can be substantially perpendicular to the second direction. In some embodiments, if the first thrust is greater than the reaction force, the push rod 1906 can slide downward along the third inclined surface 2055 and move to or close to the bottom edge of the third inclined surface 2055. Then, the push rod 1906 can be separated from the first inclined surface and / or the third inclined surface 2055 and can reach below the bottom of the first protrusion 2065.

[0072] In some embodiments, if the first thrust is released, the push rod 1906 can move in a direction opposite to the second direction, and the push rod 1906 can slide in the left part of the area formed by the protrusion 2045 and the groove 2035 of the guiding block 2005. At the same time, the guiding block 2005 can move in a direction opposite to the first direction. When the push rod 1906 moves to the top position of the groove 2035, the push rod 1906 and the guiding block 2005 can stop moving. Therefore, the push rod 1906 can be inserted into the groove 2035 of the guiding block 2005 (see Figure 5B ). Thus, the liquid chamber 1704 can be installed on the main body 1702 of the respiratory ventilation device. In some embodiments, when the first thrust is applied to the liquid chamber 1704 and / or when the liquid chamber 1704 is installed on the main body 1702, the heating plate 1710 can be pressed by the bottom surface of the liquid chamber 1704 and can move downward in the second hole 1711. In some embodiments, one or more springs 2202 located below the heating plate 1710 can be pressed, and then the heating plate 1710 and the heat conducting plate 1810 located at the bottom of the liquid chamber 1704 can form a close contact (or a tight contact).

[0073] Figure 5C and5D An exemplary process of removing a liquid chamber from a main body of a breathing ventilation device using a push-push mechanism according to some embodiments of the present disclosure is shown. As Figure 5C shown, the liquid chamber 1704 can be driven by a second thrust and then released from the main body 1702. In some embodiments, the second thrust can be generated by a user. The direction of the second thrust can be indicated by arrow A (e.g., the vertical direction, also referred to as the second direction). When driven by the second thrust, the push rod 1906 can move along the second direction (indicated by arrow A) together with the liquid chamber 1704 and move downward in the right side portion of the area formed by the protrusion 2045 and the groove 2035 of the guide block 2005. At the same time, the guide block 2005 can move in the opposite direction of the first direction (indicated by arrow B'). In some embodiments, the movement of the guide block 2005 in the opposite direction of the first direction can be driven by the reaction force of the second spring 2008. Then, the push rod 1906 can be released from the groove 2035 and can reach below the bottom of the second protrusion 2075.

[0074] In some embodiments, if the second thrust is released, one or more compressed springs 2202 below the heating plate 1710 can drive the heating plate 1710 to move in the opposite direction of the second direction. This movement of the heating plate 1710 can drive the liquid chamber 1704 to move in the opposite direction of the second direction, and this movement of the liquid chamber 1704 can cause the guide push rod 1906 to move in the opposite direction of the second direction. Then, the push rod 1906 can move along the second inclined surface of the guide block 2005, and the guide block 2005 can move in the opposite direction of the first direction (indicated by arrow B'). Therefore, the liquid chamber 1704 can be released from the main body 1702 of the breathing ventilation device 1700 (see Figure 5D ), and the liquid chamber 1704 can be removed from the main body 1702.

[0075] It should be noted that the above description of the push-push mechanism 1904 is provided for illustrative purposes only and is not intended to limit the scope of the present disclosure. Various changes and modifications can be made by those of ordinary skill in the art under the teachings of the present disclosure. However, such changes and modifications do not depart from the scope of the present disclosure. In some embodiments, the push-push mechanism 1904 can be mounted on the body 1702 of the breathing ventilator in different directions, and thus different pushing forces may be required to mount the liquid chamber 1704 and / or to mount and remove the liquid chamber 1704 from the body 1702. In some embodiments, the guide block 2005 can be arranged to be mirror-symmetrical to the guide block 2005 shown in FIGS. 4A-5D. In some embodiments, the push-push mechanism 1904 can include more than one push rod. In some embodiments, the push-push mechanism 1904 can be used to unlock the liquid chamber 1704 from the body of the breathing ventilator by pushing the liquid chamber 1704 along the pushing direction. The pushing direction can be substantially perpendicular to the liquid level in the liquid chamber 1704. In some embodiments, the push-push mechanism 1904 can be used to form an energy storage device that stores the energy of the pushing action and releases the stored energy after unlocking the liquid chamber 1704 by applying a force substantially in the opposite direction of the pushing direction on the liquid chamber. It should be noted that in some embodiments, the lid of the liquid chamber 1704 can be arranged to be closed by pushing along the pushing direction. In some embodiments, the lid of the liquid chamber 1704 can be arranged to be opened by pulling along a direction substantially opposite to the pushing direction. In some embodiments, during the operation of the breathing ventilator, the user can connect the humidification component (such as the liquid chamber 1704) to the body of the breathing ventilator by pushing the liquid chamber 1704 along the pushing direction, and / or unlock the humidification component from the body by substantially pushing the liquid chamber 1704 along the pushing direction. In some embodiments, before performing the connection operation, the user can place the humidification component on the surface of the breathing ventilator. In some embodiments, the connection operation of the humidification component can include locking the implementation lid to the box body by substantially pushing the lid along the pushing direction.

[0076] Figures 6A - 6C An exemplary heating plate according to some embodiments of the present disclosure is shown. In some embodiments, the heating plate 1710 can include one or more fixing posts 2204 (such as Figure 6D the four fixing posts shown in), which are configured to fix one or more springs 2202 (such as Figure 6Cand the first ends of the four springs shown in 6D). Accordingly, the substrate 2203 of the main body 1702 may include one or more fixing posts or bolts configured to fix the second ends of the springs 2202. Thus, the heating plate 1710 may be mounted or fixed to the substrate 2203 of the main body 1702 via one or more springs 2202. As shown in FIG. 17, the heating plate 1710 is capable of moving up and down through the second hole 1711 when driven by pressure or when the pressure is released. To facilitate the movement of the heating plate 1710 in the second hole 1711, the heating plate 1710 may include one or more guiding bumps 2201. For example, the heating plate 1710 may include a guiding bump 2201 on each side of the heating plate 1710. Accordingly, the side walls of the second hole 1711 may include one or more guiding grooves (not shown). The guiding bumps and the guiding grooves may be configured to guide the movement of the heating plate 1710 and / or limit the position of the heating plate 1710. For example, the second hole 1711 may include a guiding groove in each of its side walls. It should be noted that in some embodiments, the heating plate 1710 may include one or more guiding grooves, and the second hole 1711 may include one or more guiding bumps corresponding to the guiding grooves.

[0077] Figures 7A - 7D An exemplary connection between a liquid chamber and a main body of a breathing ventilation device according to some embodiments of the present disclosure is shown. Figure 7A An isometric view of the connector 2301 is shown, which is connected to the lid 2302 of the liquid chamber 2303. It should be noted that for illustrative purposes, the lid shell of the lid 2302 is not shown in Figure 7A shown. Figure 7B An isometric view of the connector 2301 is shown. FIG. 7C shows an isometric view of the lid 2302. Figure 7D A cross-sectional view of the sealed connection between the washer 2305 of the connector 2301 and the lid 2302 is shown.

[0078] The connector 2301 may be configured to provide a sealed connection between the lid 2302 and the main body of the breathing ventilation device, thereby ensuring the airtightness of the pressurized breathing gas flowing between the liquid chamber 2303 and the main body of the breathing ventilation device. In some embodiments, the connector 2301 may be fixed to the main body of the breathing ventilation device. In some embodiments, the connector 2301 may be detachably connected to the main body of the breathing ventilation device. In some embodiments, the housing of the main body of the breathing ventilation device may include a space (such as the chamber 2502) for accommodating the connector 2301. In some embodiments, the connector 2301 and the main body may be an integral part. In some embodiments, if the liquid chamber 2303 is fixed to the support plate of the main body of the breathing ventilation device 110 (such as Figure 1As shown in the support plate 1707), and when the lid 2302 of the case closes the case body of the liquid chamber 2303, the connecting member 2301 can provide a sealed connection between the lid 2302 and the main body of the respiratory ventilation device. In some embodiments, the connecting member 2301 can be fixed or mounted on the lid 2302. In some embodiments, the connecting member 2301 can be detachably connected to the lid 2302. In some embodiments, the lid 2302 can include a space for mounting the connecting member 2301. In some embodiments, the connecting member 2301 and the lid 2302 can be an integral piece.

[0079] As Figure 7BAs shown, the connecting member 2301 may include a support frame 2304 and / or a gasket 2305. The support frame 2304 may be configured to support the gasket 2305 and / or facilitate the fixation of the gasket 2305 to the body of the respiratory ventilator. In some embodiments, the gasket 2305 may include an inclined surface. In some embodiments, there may be an inclination angle between the inclined surface of the connecting member 2301 (or the gasket 2305) and the horizontal plane. In some embodiments, the inclination angle may be substantially within 0 degrees to 90 degrees (e.g., within 30 to 60 degrees). The gasket 2305 may be configured to form a sealed connection between the lid 2302 and the body of the respiratory ventilator. In some embodiments, the gasket 2305 may include a first hole 2306 and / or a second hole 2307 provided on the inclined surface. In some embodiments, the support frame 2304 may include at least one gas flow channel connected to the first hole 2306 and / or the second hole 2307. Each gas flow channel in the at least one gas flow channel may be connected to one or more gas channels of the body of the respiratory ventilator. In some embodiments, the edge of the first hole 2306 may form a first protruding structure 2311. In some embodiments, the edge of the second hole 2307 may include a second protruding structure 2312. The first protruding structure 2311 and / or the second protruding structure 2312 may protrude into the lid 2302. The first protruding structure 2311 and / or the second protruding structure 2312 may facilitate the sealed connection between the connecting member 2301 and the lid 2302. In some embodiments, the cross-section of the first protruding structure 2311 and / or the second protruding structure 2312 may have a C-shape, S-shape, O-shape, V-shape, M-shape, N-shape, Z-shape, U-shape or one or more folds, etc., or a combination thereof. In some embodiments, the first protruding structure 2311 and / or the second protruding structure 2312 may be made of a soft material (such as silicone, soft rubber, etc. or any combination thereof). In some embodiments, the first protruding structure 2311 and / or the second protruding structure 2312 may be made of the same material as the gasket 2305. In some embodiments, the first protruding structure 2311 and / or the second protruding structure 2312 may be made of a material different from that of the gasket 2305. In some embodiments, the thickness of the first protruding structure 2311 and / or the second protruding structure 2312 may be less than the thickness of the gasket 2305.

[0080] In some embodiments, the gasket 2305 can be fixed to the body of the breathing device (e.g., the support frame 2304 of the connector 2301). In some embodiments, the gasket 2305 can be detachably connected to the body of the breathing device (e.g., the support frame 2304 of the connector 2301) by, for example, gluing, bonding, bolting, etc. or a combination thereof. In some embodiments, the support frame 2304 can be made of a rigid plastic material. Exemplary rigid plastic materials can include acrylonitrile butadiene styrene (ABS) resin material, polyoxymethylene (POM) plastic material, polystyrene (PS) plastic material, polymethyl methacrylate (PMMA) plastic material, polycarbonate (PC) plastic material, poly(ethylene terephthalate) (PET) plastic material, poly(butylene terephthalate) (PBT) plastic material, or poly(phenylene oxide) (PPO) plastic material, etc. or any combination thereof. In some embodiments, the gasket 2305 can be made of an elastic material, and the elastic material includes, for example, elastomers, rubber (e.g., silicone), etc. or a combination thereof. In some embodiments, the gasket 2305 can include a protruding edge at the interface between the support frame 2304 and the gasket 2305. The protruding edge of the gasket 2305 can facilitate a sealed connection between the connector 2301 and the body of the breathing device.

[0081] As Figures 7A - 7D shown, the inclined surface of the gasket 2305 can face the corresponding inclined surface of the connecting plate 2308 of the lid 2302. The lid 2302 can include a gas inlet 2309 and a gas outlet 2310. The first hole 2306 located on the inclined surface of the gasket 2305 can correspond to the gas inlet 2309 of the lid 2302, and the second hole 2307 located on the inclined surface of the gasket 2305 can correspond to the gas outlet 2310 of the lid 2302. In some embodiments, if the liquid chamber 2303 is fixed to the support plate of the body of the breathing device (e.g., the support plate 1707 shown in Figure 1 ), and the lid 2302 is closed with the housing of the liquid chamber 2303, the lid 2302 can be hermetically connected to the body of the breathing device through the gasket 2305. The first hole 2306 of the gasket 2305 and the gas inlet 2309 of the lid 2302 can introduce pressurized breathing gas from the body of the breathing device 110 into the liquid chamber 2303. The second hole 2307 of the gasket 2305 and the gas outlet 2310 of the lid 2302 can return the humidified and pressurized breathing gas from the liquid chamber 2303 back to the body of the breathing device.

[0082] As Figure 7DAs shown, if the lid 2302 is closed, the first protruding structure 2311 can be squeezed and deformed, and then can form a closed-line contact with the connecting plate 2308 of the lid 2302 (e.g., around the edges of the gas inlet 2309 and / or the gas outlet 2310). Thus, the airtightness of the breathing gas flowing between the main body of the breathing ventilation device and the liquid chamber 2303 can be ensured.

[0083] Figure 8 Another exemplary connection between the liquid chamber and the main body of the breathing ventilation device according to some embodiments of the present disclosure is shown. As Figure 8 shown, the liquid chamber 2403 may include a box body 2401 and a lid 2402. The connecting member 2301 may be configured to provide a sealed connection between a part of the box body 2401 and the main body of the breathing ventilation device. In some embodiments, the connecting member 2301 may not directly contact the lid 2402. Thus, the state (open or closed) of the lid 2402 may not affect the connection between the connecting member 2301 and the box body 2401. In some embodiments, the lid 2402 may be opened by a handle 2404. The handle 2404 may have one or more recesses, which may make the handle 2404 easier to operate. In some embodiments, the lid 2402 may be a sliding lid. In some embodiments, the lid 2402 may slide in a horizontal direction or in a direction inclined at an angle (e.g., 10 degrees, 20 degrees, 30 degrees, etc.) relative to the horizontal direction. In some embodiments, in order to ensure the sealed connection between the box body 2401 and the lid 2402, the junction 2405 between the box body 2401 and the lid 2402 may be equipped with a sealing material (or elastic material) including, for example, silicone resin.

[0084] Figure 9 An exemplary connecting member fixed to the main body of the breathing ventilation device according to some embodiments of the present disclosure is shown. In some embodiments, as Figure 9As shown, a protruding platform 2501 may be provided at the gas outlet of the noise reduction box or in the gas passage between the gas outlet of the noise reduction box and the connector 2301. In some embodiments, the protruding platform 2501 may include a gas passage corresponding to the gas outlet. In some embodiments, the gas passage between the gas outlet of the noise reduction box and the connector 2301 may form a chamber 2502. The chamber 2502 may include a bottom surface. In some embodiments, if the gas outlet of the protruding platform 2501 is in the vertical direction, the upper edge of the protruding platform 2501 may be set higher than the bottom surface of the chamber 2502. In some embodiments, if the gas outlet of the protruding platform 2501 is in the horizontal direction, the lower edge of the gas passage in the protruding platform 2501 may be set higher than the bottom surface of the chamber 2502. In some cases, if the breathing ventilation device is placed obliquely (i.e., the liquid chamber is placed obliquely), a certain amount of liquid in the liquid chamber (such as liquid chamber 1704, liquid chamber 2403) may accidentally flow out of the liquid chamber and / or the connector 2301 via the gas inlet (such as gas inlet 2309) and / or the gas outlet (such as gas outlet 2310) of the liquid chamber and enter the chamber 2502 of the main body of the breathing ventilation device. In some embodiments, the protruding platform 2501 may prevent liquid from entering or reaching the internal space of the main body of the breathing ventilation device, the noise reduction component, and / or the gas pressurization unit.

[0085] In some embodiments, the protruding platform 2501 may be fixed to the gas outlet of the noise reduction component, the gas pressurization unit, or may be fixed in the chamber 2502. In some embodiments, the protruding platform 2501 may be detachably connected to the gas outlet of the noise reduction component, the gas pressurization unit, or the chamber 2502 through a detachable connection structure (such as a threaded structure, a groove structure, or a snap joint structure, etc. or any combination thereof).

[0086] Figures 10A - 10C An exemplary connection between the main body of a breathing ventilation device and a liquid chamber according to some embodiments of the present disclosure is shown. The connector 2601 may be configured to provide a sealed connection between the box cover 2603 and the main body 2602 of the breathing ventilation device. In some embodiments, the connector 2601 may include a first threaded hose 2601a and / or a second threaded hose 2601b. The hollow hole of the first threaded hose 2601a may form the gas outlet of the main body 2602. The hollow hole of the second threaded hose 2601b may form the gas inlet of the main body 2602. In some embodiments, the first threaded hose 2601a and / or the second threaded hose 2601b may be made of an elastic material, and the elastic material includes, for example, elastomers, rubber (such as silicone), etc. or a combination thereof.

[0087] In some embodiments, the lid 2603 of the liquid chamber may include a connecting plate 2606 equipped with a gas inlet 2604 and / or a gas outlet 2605 of the lid 2603. The gas outlet of the main body 2602 may correspond to the gas inlet 2604 of the lid 2603. The gas inlet of the main body 2602 may correspond to the gas outlet 2605 of the lid 2603. In some embodiments, as Figure 10A shown, the hollow holes of the first threaded hose 2601a and the second threaded hose 2601b of the connector 2601 may be disposed substantially vertically at the first interface between the main body 2602 of the breathing ventilator and the liquid chamber. Correspondingly, the connecting plate 2606 may be disposed substantially horizontally on the lid 2603. Thus, if the lid 2603 is closed, a sealed connection may be formed between the main body 2602 of the breathing ventilator and the liquid chamber through the connector 2601.

[0088] Figure 11 An exemplary connection between the connector 2601 and the connecting plate 2606 of the lid 2603 when the lid 2603 is closed according to some embodiments of the present disclosure is shown. As Figure 11 shown, if the lid 2603 is closed, the connector 2601 may be connected to the connecting plate 2606 of the lid 2603 and may form a closed line contact with the connecting plate 2606, which can ensure the airtightness of the pressurized breathing gas flowing between the liquid chamber and the main body of the breathing ventilator.

[0089] Figures 12A - 12E An exemplary threaded hose of the connector according to some embodiments of the present disclosure is shown. In some embodiments, the threaded hose of the connector may include one or more pleated structures on its sidewall. The one or more pleated structures may be of any shape, such as a quarter circle, a semi-circle, an arc, a groove, a U shape, a V shape, a Z shape, an M shape, an S shape, a C shape, an O shape, etc. or any combination thereof. When the lid 2603 is closed, the one or more pleated structures may provide a certain elasticity to the connector to form a closed line contact with the lid 2603.

[0090] In some embodiments, at the top edge of the threaded hose of the connector, there may be one or more bending structures having, for example, a circular, an annular, an arc, a crescent, a slant line, a groove, a U shape, a V shape, a Z shape, an M shape, an S shape, a C shape, an O shape, etc. or any combination thereof. The one or more bending structures may enable the connector to form one or more closed line contacts with the lid 2603 to ensure the airtightness of the pressurized breathing gas flowing between the liquid chamber and the main body of the breathing ventilator.

[0091] For example, in Figure 12AIn the middle, the threaded hose of the connector may have two layers of pleated structures on its side wall. In Figure 12B In the middle, the threaded hose of the connector may include a quarter - circular pleated structure 2801 near the top edge of the threaded hose and an arc - shaped pleated structure 2802 near the bottom of the threaded hose. In some embodiments, the quarter - circular pleated structure 2801 and / or the arc - shaped pleated structure 2802 may be provided on the inner surface of the threaded hose. In some embodiments, the threaded hose may include an S - shaped bending structure (not shown) on its top edge. In Figure 12C In the middle, the threaded hose may include a double - C - shaped bending structure 2804 on its top edge. When the lid of the box is closed, the double - C - shaped bending structure 2804 may form two closed - line contacts between the connector and the lid of the box. In Figure 12D In the middle, the threaded hose may include an approximately circular structure 2805 on its top edge. In Figure 12E In the middle, the threaded hose includes a semi - lunar - shaped bending structure 2806. When the lid of the box is closed, the approximately circular structure 2805 and the semi - lunar - shaped bending structure 2806 may provide a sealed closed - line contact between the connector and the lid of the box. In Figure 1 In some embodiments, the threaded hose may include a slant - shaped bending structure (not shown) on its top edge and a trapezoidal groove (not shown) on its inner surface. All of the above - mentioned threaded hoses can be configured to ensure the airtightness of the pressurized breathing gas flowing between the liquid chamber and the main body of the respiratory ventilation device.

[0092] Figures 13A - 13D Shows an exemplary substrate of a respiratory pressure treatment device according to some embodiments of the present disclosure. Figure 13A Shows the outer surface of the substrate 2900. Figure 13B Represents the inner surface of the substrate 2900. Figure 13C Shows a side cross - sectional view of the substrate 2900. Figure 13D Shows an enlarged view of one or more holes 2920 provided on the substrate 2900. The one or more holes 2900 can be configured to drain a certain amount of liquid leaking from the liquid chamber (e.g., Figure 1 the liquid chamber 1704 shown in Figure 13C and Figure 13DAs shown, the cross-section of each of the one or more holes 2920 may have a stepped shape. In some embodiments, the holes 2920 may facilitate the discharge of leaked liquid. In some embodiments, the holes 2920 may prevent foreign objects (such as the finger of an object) from entering the breathing ventilation device. In some embodiments, the one or more holes 2920 may comply with international standards to make the overall appearance of the breathing ventilation device more elegant and / or prevent an object from directly seeing the internal space of the breathing ventilation device from the outside.

[0093] Figure 14A and 14B shows an exemplary liquid chamber of a breathing ventilation device according to some embodiments of the present disclosure. Figure 14A and 14B are schematic diagrams showing the liquid chamber 3000 in an open mode from different views. As Figure 14A and 14B shown, the liquid chamber 3000 may include a box body 3002 and a box cover 3004. In some embodiments, the box cover 3004 may be pivotally connected to the box body 3002 by a connecting mechanism. In some embodiments, the liquid chamber 3000 can be opened from the front surface of the breathing ventilation device.

[0094] The box body 3002 may be configured to hold one or more liquids (such as water and / or medicine). In some embodiments, the box body 3002 may include an opening for filling at least one of the one or more liquids. In some embodiments, the opening can be opened by opening the box cover 3004 and / or closed by closing the box cover 3004. In some embodiments, the humidifying component and the main body of the breathing ventilation device may be fluidly connected by closing the box cover 3004 and / or disconnected from the fluid connection by opening the box cover 3004. In some embodiments, the box body 300 2 and the main body may be connected to each other by moving the box body 3002 relative to the main body along an attachment direction, and the included angle between the rotation axis and the attachment direction is between 20° and 160°. In some embodiments, the box body 3002 and the main body may be unlocked from each other by moving the box body 3002 relative to the main body along an unlocking direction, and the included angle between the rotation axis and the unlocking direction is between 20° and 160°. In some embodiments, the included angle between the attachment direction and the unlocking direction may be between -45° and 45°.

[0095] In some embodiments, the humidification component and the main body of the respiratory ventilation device may be fluidly connected through at least one connection port for forming at least one flow channel between the main body of the respiratory ventilation device and the liquid chamber 3000. In some embodiments, the at least one connection port (such as the connector 2301) may include a gas inlet (such as the second hole 2307) and a gas outlet (such as the first hole 2306). In some embodiments, the connection port (such as the connector 2301) may include an axial seal (such as the first protruding structure 2311 and / or the second protruding structure 2312) for fluid-tightly connecting the gas inlet 3102 and the gas outlet 3104. In some embodiments, the inner surface of the axial seal may at least partially form the flow channel. In some embodiments, the axial seal may define a sealing plane. In some embodiments, the angle between the sealing plane and the liquid level in the liquid chamber 3000 may be between -75° and 75° (such as between -30° and 30°). In some embodiments, the angle between the sealing plane and the attachment direction may be between 15° and 65°. In some embodiments, the angle between the liquid level and the attachment direction and / or the unlocking direction may be between 45° and 135°.

[0096] In some embodiments, the liquid chamber 3000 may be detachably connected to the main body of the respiratory ventilation device through a push-push mechanism (such as the push-push mechanism 1904).

[0097] In some embodiments, the pushing direction of the push-push mechanism may be substantially perpendicular to the rotation axis of the connection mechanism. In some embodiments, when the box body 3002 is attached to the main body, the humidification component and the main body of the respiratory ventilation device may be fluidly connected by closing the box cover 3004 along the pushing direction of the push-push mechanism and / or when the box cover 3004 is closed by attaching the liquid chamber 3000 to the main body along the pushing direction.

[0098] The shape of the housing 3002 can include a cube, a cuboid, or an irregular shape that can cooperate with the main body of the breathing ventilation device. The housing 3002 can be transparent, opaque, or translucent. In some embodiments, the housing 3002 can include one or more markings for indicating the liquid level (e.g., water level) of one or more liquids in the housing 3002. For example, the housing 3002 can include a first sticker marking located on the side surface of the housing 3002 indicating the minimum allowable liquid level and / or a second sticker marking located on the side surface of the housing 3002 indicating the maximum allowable liquid level. As another example, the housing 3002 can include a floating object (e.g., a colored float ball) floating in one or more liquids within the housing 3002. In some embodiments, the housing 3002 can be equipped with a sensor for detecting the liquid level of one or more liquids. More descriptions of the housing 3002 can be found elsewhere in this disclosure (e.g., Figure 2A , 2B and 16A - 16C and their descriptions).

[0099] In some embodiments, the shape of the lid 3004 can be similar to or different from the shape of the housing 3002. The shape of the lid 3004 can include a cube, a cuboid, or an irregular shape that can cooperate with the main body of the breathing ventilation device. The material of the lid 3004 can be similar to or different from the material of the housing 3002. The lid 3004 can be transparent, opaque, or translucent. More descriptions of the lid 3004 can be found elsewhere in this disclosure (e.g., Figure 15 and 21A -26B and their descriptions).

[0100] In some embodiments, the lid 3004 can include a handle 3006, and one or more buckles (e.g., a first buckle 3008a and / or a second buckle 3008b) located on the rear side of the handle 3006. The handle 3006 can be configured to facilitate the opening and / or closing of the lid 3004. The housing 3002 can include one or more recesses (e.g., a first recess 3010a or a second recess 3010b) located at a position opposite to the handle 3006 (specifically, at a position corresponding to one or more buckles of the handle). If the lid 3004 is closed, the lid 3004 can be fastened to the housing 3002 through the cooperation of one or more buckles and one or more recesses. In some embodiments, the first recess 3010a and / or the second recess 3010b can be equipped with a transverse rod. In some embodiments, the first buckle 3008a and / or the second buckle 3008b can be fastened through the transverse rod, such that the lid 3004 can be fastened to the housing 3002.

[0101] In some embodiments, the lid 3004 can be rotatably connected to the housing 3002 via a connecting mechanism 3009. In some embodiments, the lid 3004 can be pivotally connected to the housing 3002 by a connecting mechanism 3009 having a rotation axis. In some embodiments, the lid 3004 can be opened by rotating relative to the housing 3002 to a specific angle (such as 90 degrees, 100 degrees, etc.). This specific angle can be associated with the maximum rotational movement of the lid 3004. In some embodiments, the liquid chamber 3000 can be opened from the front surface of the breathing ventilator. In some embodiments, as Figure 14A shown in FIGS. 14A and 14B, the connecting mechanism 3009 can be disposed on the rear side (or rear surface) of the breathing ventilator, and the handle 3006 can be disposed on the front surface of the breathing ventilator, so that when the lid 3004 is opened, the lower surface of the lid 3004 can be substantially upright and face the front surface of the breathing ventilator. In some embodiments, the connecting mechanism 3009 can be disposed on a side surface of the breathing ventilator away from the main body of the breathing ventilator, the handle 3006 can be disposed on the top surface of the breathing ventilator, and the lid 3004 can be opened such that the lower surface of the lid 3004 can be substantially upright and face the main body (not shown) of the breathing ventilator. In some embodiments, the connecting mechanism 3009 can be configured as a guiding groove (not shown), and the lid 3004 can be opened by horizontally moving relative to the housing 3002. More descriptions of the connecting mechanism 3009 can be found elsewhere in this disclosure (such as Figures 17A - 20B and its description).

[0102] In some embodiments, the liquid chamber 3000 can include connecting members (such as Figure 2A and 2B the fixed washer 1806 and / or the lid sealing washer 1807 shown in FIG. 14C), which are configured to provide a sealed connection between the housing 3002 and the lid 3004 so that when the lid 3004 is closed with the housing 3002, the liquid chamber 3000 can be sealed. The connecting members can be made of materials having properties such as sealing, flexibility, elasticity, etc. or any combination thereof. For example, the connecting members can include flexible rubber (such as silicone) or a mixture of flexible rubber and hard rubber. In some embodiments, the connecting members can be fixed on the bottom surface of the lid 3004 and / or the upper surface of the housing 3002.

[0103] It should be noted that the above description of the liquid chamber 3000 is provided for illustrative purposes only and is not intended to limit the scope of the present disclosure. Various changes and modifications can be made by those of ordinary skill in the art under the teachings of the present disclosure. However, these changes and modifications do not depart from the scope of the present disclosure. For example, the housing 3002 of the liquid chamber 3000 can be equipped with sensors for detecting the liquid level of one or more liquids. When the liquid level is less than a predetermined level, the breathing ventilation device can generate a reminder based on the signal of the sensor. As another example, the lid 3004 can slide relative to the housing 3002 in an inclined manner. As another example, the lid 3004 can slide in an arc at a certain angle relative to the housing 3002.

[0104] Figure 15 An exemplary lid of the liquid chamber of a breathing ventilation device according to some embodiments of the present disclosure is shown. The lid 3004 can include a lid housing. The lid housing can include a front surface corresponding to the front surface of the breathing ventilation device, a rear surface corresponding to the rear surface of the breathing ventilation device, a top surface away from the corresponding housing (such as the housing 3002), a bottom surface that can contact the housing 3002, a side surface close to the main body of the breathing ventilation device, a side surface away from the main body of the breathing ventilation device, etc. The lid 3004 can include a gas inlet 3102, a gas outlet 3104, a handle 3006, a connecting member 3108 of the connecting mechanism 3009, etc. The gas inlet 3102 can be configured to introduce pressurized breathing gas from the main body of the breathing ventilation device into the liquid chamber (such as the liquid chamber 3000). The gas outlet 3104 can be configured to return the humidified and pressurized breathing gas from the liquid chamber back into the main body of the breathing ventilation device.

[0105] As Figure 15 shown, the handle 3006 can be provided on the front surface of the lid 3004. The connecting member 3108 of the connecting mechanism 3009 can be provided on the rear surface of the lid 3004. The gas inlet 3102 and the gas outlet 3104 can be provided on the side surface (such as an inclined surface) of the lid 3004 close to the main body of the breathing ventilation device. In some embodiments, the gas inlet 3102 and the gas outlet 3104 can be provided on a part of the bottom surface of the lid 3004 (see Figure 10B ). The gas inlet 3102 and the gas outlet 3104 can be provided close to the main body of the breathing ventilation device and can be not in contact with the housing 3002.

[0106] Figures 16A - 16C An exemplary housing of the liquid chamber of a breathing ventilation device according to some embodiments of the present disclosure is shown. Figures 16A - 16CThe housing 3002 is shown in different views. The housing 3002 may include a front surface facing the user of the respiratory ventilator device, a rear surface away from the user of the respiratory ventilator device, a top surface that may contact the lid 3004, a bottom surface away from the lid 3004, a side surface close to the main body of the respiratory ventilator device, a side surface away from the main body of the respiratory ventilator device, etc. The housing 3002 may include a connecting member 3202 of the connecting mechanism 3009, a bolt 3204, one or more notches 3010, etc.

[0107] As Figures 16A - 16C shown, the connecting member 3202 of the connecting mechanism 3009 may be provided on the rear surface of the housing 3002. The connecting member 3202 of the connecting mechanism 3009 and the connecting member 3108 of the connecting mechanism 3009 may form an integral connecting mechanism 3009. The bolt 3204 may be provided below the bottom surface of the housing 3002. The bolt 3204 may be fixed to the bottom surface of the housing 3002 by the connecting member 3205. In some embodiments, the bolt 3204 may be related to a push-push mechanism (such as Figures 3 - 5D the push-push mechanism 1904 shown in

[0108] ). The one or more notches 3010 may be provided on the front surface of the housing 3002 to align with the handle 3006 of the lid 3004. Figure 3 In some embodiments, the side surface of the liquid chamber 3000 close to the main body of the respiratory ventilator device may have an angle with respect to the horizontal plane. In some embodiments, the angle between the side surface of the housing 3002 close to the main body of the respiratory ventilator device and the horizontal plane may be greater than the angle between the inclined surface of the lid 3004 and the horizontal plane, which may facilitate the sealed connection between the lid 3004 and the main body of the respiratory ventilator device. In some embodiments, the front surface of the housing 3002, the rear surface of the housing 3002, and / or the side surface of the housing 3002 away from the respiratory ventilator device may extend downward to one or more baffles (such as baffles 3011a, 3011b, and / or 3011c) located below the bottom surface. If the liquid chamber is installed on the respiratory ventilator device, the baffles 3011a, 3011b, and / or 3011c may form a space to accommodate a part of the base of the main body of the respiratory ventilator device (such as a part of the substrate and / or heating device, etc.). If the liquid chamber is placed separately, the baffles 3011a, 3011b, and / or 3011c may support the housing 3002 (or the liquid chamber) and / or protect the bolt 3204 and the connecting member 3205. In some embodiments, the bolt 3204 and the connecting member 3205 may also refer to push rods (such as

[0109] Figure 17A and 17BAn exemplary box body according to some embodiments of the present disclosure is shown. As shown in FIGS. 17A and 17B, the box body 3300 may include one or more first connectors 3310. In some embodiments, each of the one or more first connectors 3310 may include a pin hole 3320, a protruding column 3340, and / or a first inclined guiding surface 3330.

[0110] Figure 18A and 18B An exemplary box cover according to some embodiments of the present disclosure is shown. As shown in FIGS. 18A and 18B, the box cover 3400 may include one or more second connectors 3410. In some embodiments, each of the one or more second connectors 3410 may include a pin 3420, a second inclined guiding surface 3430, a groove 3440, and / or a guiding groove 3450. In some embodiments, the pin 3420 may be placed in the pin hole 3320 such that the box cover 3400 can be fixed to the box body 3300. During the process of opening and / or closing the box cover 3400, the pin 3420 may rotate in the pin hole 3320. In some embodiments, the first inclined guiding surface 3330 of the first connector 3310 and the second inclined guiding surface 3430 of the second connector 3410 may be configured to facilitate the installation of the box cover 3400 on the box body 3300. In some embodiments, the guiding groove 3450 may include a first end adjacent to the groove 3440 and a second end away from the groove 3440. In some embodiments, the depth of the guiding groove 3450 may gradually change from a relatively small value at the first end to a relatively large value at the second end. In some embodiments, the guiding groove 3450 may be curved to cooperate with the rotational movement of the box cover 3400 relative to the box body 3300.

[0111] Figure 19A and 19B The cooperation between the protruding column of the first connector of the box body and the groove of the second connector of the box cover according to some embodiments of the present disclosure is shown. In some embodiments, as Figure 19AAs shown, if the lid 3400 is closed, the protruding post 3340 can be positioned at or near the second end of the guiding groove 3450. During the process of opening the lid 3400, the protruding post 3340 can gradually slide along the guiding groove 3450 from the second end to the first end of the guiding groove 3450. The design that the first end of the guiding groove 3450 has a relatively small depth relative to the second end of the guiding groove 3450 can make the protruding post 3340 easily fall into the groove 3440. The design that the second end of the guiding groove 3450 has a relatively large depth relative to the first end of the guiding groove 3450 can facilitate the second end of the guiding groove 3450 to accommodate the protruding post 3340 when the lid 3400 is closed. In some embodiments, if the lid 3400 is opened to a certain angle, the protruding post 3340 can fall into the recess 3440 and limit the lid 3400 from rotating and moving back. Because the recess 3440 and the guiding groove 3450 are disconnected and / or the depth of the first end of the guiding groove 3450 is less than the depth of the recess 3440, the protruding post 3340 is not easily separated from the recess 3440. When the protruding post 3340 falls into the recess 3440, the design of the disconnection between the recess 3440 and the guiding groove 3450 and / or the design of the relatively small depth of the first end of the guiding groove 3450 can prevent the lid 3400 from rotating back without an external force (such as a force from a user). If a force (such as by a user (such as an object)) is applied to the lid 3400 to close the lid 3400, the protruding post 3340 can be separated from the recess 3440 and can gradually slide along the guiding groove 3450 from the first end to the second end of the guiding groove 3450 until the lid 3400 is closed. In some embodiments, the protruding post 3340 can have a shape of a hemispherical, semi-elliptical or other convex structure with a curved surface to reduce the friction between the protruding post 3340 and the guiding groove 3450.

[0112] Figure 20A and 20B FIG. shows an exemplary connection between the box body and the lid of the liquid chamber 3600 according to some embodiments of the present disclosure. In some embodiments, the lid 3400 can be rotatably connected to the box body 3300 through a connection mechanism (such as the connection mechanism 3009) including a first connector 3310 and a second connector 3410. In some embodiments, the first connector 3310 can be pivotally connected to the second connector 3410.

[0113] In some embodiments, as Figure 20A and 20B shown, a pair of first connectors 3310 can be positioned between a pair of second connectors 3410. In some embodiments, a pair of second connectors 3410 can be positioned between a pair of first connectors 3310. In some embodiments, as Figure 20A and 20BAs shown, the first connecting member 3310 can be disposed on the rear surface of the housing 3300. In some embodiments, the first connecting member 3310 can be disposed on another surface of the housing 3300. For example, the first connecting member 3310 can be respectively disposed on two side surfaces of the housing 3300 and close to the rear surface of the housing 3300, and correspondingly, the second connecting member 3410 can be disposed on two side surfaces of the lid 3400 and close to the rear surface of the lid 3400. As another example, the first connecting member 3310 and the second connecting member 3410 can be hidden in the housing 3300 or the lid 3400, occupying a part of the space of the housing 3300 or the lid 3400. As another example, the first connecting member 3310 and the second connecting member 3410 can be disposed on the side surface of the liquid chamber 3600 and opposite to the gas inlet and / or gas outlet of the gas passage located above the housing 3300 (i.e., if the user faces the front surface of the breathing ventilator 110, the first connecting member 3310 and the second connecting member 3410 can be disposed on the right side surface of the liquid chamber 3600).

[0114] In some embodiments, the housing 3300 and / or the lid 3400 can have an irregular shape. Therefore, the shape or size of the first connecting member 3310 and / or the second connecting member 3410 can be irregular. For example, as Figure 20A and 20B shown, in order to match the irregular shape of the housing 3300 or the lid 3400, the lengths of a pair of the first connecting members 3310 can be different, so that when the lid 3400 is opened, the lower surface of the lid 3400 can be substantially upright and face the front surface of the breathing ventilator. In some embodiments, if the shape of the housing 3300 and / or the lid 3400 is regular, the first connecting member 3310 and / or the second connecting member 3410 can be regularly symmetric.

[0115] As Figure 20B shown, the second connecting member 3410 can include a baffle 3660 or be connected by the baffle 3660. In some embodiments, if the lid 3400 is opened to a certain angle, the baffle 3660 can be blocked by a part of the first connecting member 3310, thereby preventing the lid 3400 from rotating excessively and restricting the maximum rotational movement of the lid 3400. In some embodiments, the liquid chamber 3600 can include one or more mounting shafts located between the lid 3400 and the housing 3300. An example of the mounting shaft can be a pin 3420 (see Figure 18B ). In some embodiments, the mounting shaft can include a first mounting shaft and a second mounting shaft. In some embodiments, the height of the first mounting shaft is greater than the height of the second mounting shaft. In some embodiments, the first mounting shaft can be set higher than the second mounting shaft.

[0116] It should be noted that the above description of the connection between the box body 3300 and the box cover 3400 is provided only for illustrative purposes and is not intended to limit the scope of the present disclosure. For those of ordinary skill in the art, various changes and modifications can be made under the teachings of the present disclosure. However, those changes and modifications do not depart from the scope of the present disclosure. In some embodiments, the connection between the box body 3300 and the box cover 3400 can be implemented in other ways, such as by a hinge connection. For example, the box body 3300 and the box cover 3400 can each include cylindrical holes on the same horizontal line, and the box body 3300 and the box cover 3400 can be connected by a hinge pin passing through the holes. As another example, one end of the box body 3300 can include a hollow column having a "C" shape, and correspondingly, one end of the box cover 3400 can include a column matching the hollow column, such that if the box cover 3400 is mounted on the box body 3300, the column can be clamped in the C-shaped hollow column to achieve a rotational connection between the box body 3300 and the box cover 3400.

[0117] Figure 21A and 21B shows an exemplary box cover according to some embodiments of the present disclosure. In some embodiments, as Figure 21A and 21B shown, the box cover 3700 may include a cover shell 3710, a connecting plate 3720, an inner shell 3730, a gas channel sealing frame 3740, a bottom plate 3750, a fixing frame 3760, and a box cover sealing frame 3770. In some embodiments, the connecting plate 3720 may include a first hole 3721 and a second hole 3722. In some embodiments, the first hole 3721 may be a gas inlet of the box cover 3700 (also referred to as a humidification component gas inlet). In some embodiments, the second hole 3722 may be a gas outlet of the box cover 3700 (also referred to as a humidification component gas outlet). In some embodiments, the connecting plate 3720 may be inclined and disposed outside the cover shell 3710.

[0118] Figure 22 shows an exemplary cover shell according to some embodiments of the present disclosure. In some embodiments, as Figure 22As shown, the cover shell 3710 may include a first hole 3711, a second hole 3712, a connecting frame 3713, a baffle 3714, one or more first latches 3715, and one or more second latches 3716. The first hole 3711 and the first hole 3721 of the connecting plate 3720 may be used as the gas inlet of the box cover 3700. The second hole 3712 and the second hole 3722 of the connecting plate 3720 may be used as the gas outlet of the box cover 3700. The connecting plate 3720 may be connected (e.g., fixed) to the connecting frame 3713. In some embodiments, the connecting plate 3720 may be connected to the connecting frame 3713 by bonding, riveting, tenoning, clamping, meshing, etc. or any combination thereof. The baffle 3714 may be used to separate the gas inlet and the gas outlet of the box cover 3700 between the cover shell 3710 and the connecting plate 3720, so that the breathing gas flowing into the box cover 3700 can be isolated from the breathing gas flowing out of the box cover 3700.

[0119] In some embodiments, a sealing strip (not shown) may be used to improve the airtightness of the connection between the connecting frame 3713 and the connecting plate 3720. For example, all joints between the connecting frame 3713 and the connecting plate 3720 may be equipped with a sealing strip. In some embodiments, a sealing strip (not shown) may be provided at the joint between the baffle 3714 and the connecting plate 3720. In some embodiments, as Figure 21A shown, a first groove 37215 and / or a second groove 37225 may be provided between the cover shell 3710 and the connecting plate 3720. The first groove 37215 and / or the second groove 37225 may be used to accommodate a part of the liquid leaking from the box body (e.g., Figure 20A and 20B the box body 3300 shown in) and prevent the liquid from entering the main body of the respiratory ventilation device 110. For example, if the liquid chamber (e.g., Figure 20A the liquid chamber 3600 shown in and 20B) is placed obliquely or skewed, a part of the liquid loaded in the box body 3300 may flow into the box cover 3700, and the first groove 37215 and / or the second groove 37225 may accommodate the part of the liquid and prevent the part of the liquid from entering the main body of the respiratory ventilation device.

[0120] In some embodiments, the bottom plate 3750 can be fixed to the inner housing 3730 by adhesion, riveting, tenoning, clamping, meshing, etc. or any combination thereof. In some embodiments, the bottom plate 3750 and the inner housing 3730 can be configured as a single piece. In some embodiments, the first hook 3715 can be used to fix the inner housing 3730 and the bottom plate 3750 to the cover housing 3710. For example, through the first hook 3715, the inner housing 3730 and the bottom plate 3750 can be clamped to the cover housing 3710. In some embodiments, the first hook 3715 can be disposed in the middle of the inner sidewall of the cover housing 3710 opposite to the connection frame 3713. In some embodiments, the second hook 3716 can be used to fix the fixing frame 3760 to the cover housing 3710. In some embodiments, a plurality (e.g., 4, 6, 8, etc.) of second hooks 3716 can be provided at the inner sidewall of the cover housing 3710 to fix the fixing frame 3760 to the cover housing 3710. For example, as Figure 22 shown, each of the two sidewalls of the cover housing 3710 adjacent to the connection frame 3713 can include three second hooks 3716. In some embodiments, the lid seal frame 3770 can be fixed to the fixing frame 3760. In some embodiments, the fixing frame 3760 and the lid seal frame 3770 can be connected by adhesion, clamping, meshing, etc. or any combination thereof. The lid seal frame 3770 can be used to improve the airtightness of the connection between the box body (such as Figure 20A the box body 3300 shown in FIGS. 20A and 20B) and the lid 3700. In some embodiments, the lid seal frame 3770 can be made of a sealing material, which includes, for example, silicone, rubber, nylon, etc. or any combination thereof. In some embodiments, some or all of the components of the cover housing 3710 (such as the first hole 3711, the second hole 3712, the connection frame 3713, the baffle 3714, the first hook 3715, and / or the second hook 3716) can be configured as a single piece.

[0121] In some embodiments, the lid housing 3710 may be connected and / or capable of being connected to the box body and / or the lid 3700. In some embodiments, the lid housing 3710 may be pivotally disposed relative to the box body. In some embodiments, the liquid contact sidewall of the liquid chamber may be at least partially formed by the outer sidewall of the outer surface of the box body forming the humidification component. In some embodiments, the box body may be formed with only one opening for filling the liquid and / or for replacing the pressurized breathing gas. In some embodiments, the lid 3700 may be pivotally connected to the box body by a connecting mechanism. In some embodiments, at least a portion of the side of the first gas channel near the connecting mechanism may be covered by the side edge of the humidification component gas inlet of the liquid chamber along the flow direction. In some embodiments, at least a portion of the side of the second gas channel near the connecting mechanism may be covered by the side edge of the humidification component gas outlet of the liquid chamber along the flow direction. In some embodiments, the distance between the connecting mechanism and the humidification component gas outlet may be less than the distance between the connecting mechanism and the humidification component gas inlet.

[0122] Figure 23A and 23B illustrates an exemplary inner shell of a lid according to some embodiments of the present disclosure. In some embodiments, as Figure 23A and 23B shown, the inner shell 3730 may include a gas inlet 3731 and / or a gas outlet 3732. In some embodiments, the gas inlet 3731 may be used to introduce a gas (e.g., pressurized breathing gas) into the liquid chamber via a first gas channel (e.g., the gas channel indicated by the arrow as shown in Figure 23A ). As Figure 23AAs shown, the first gas channel (also referred to as the gas inlet channel) may include an outlet 3733. In some embodiments, the outlet 3733 of the first gas channel may be used to connect the first gas channel to the housing. Gas may flow out of the first gas channel through the outlet 3733 and into the liquid chamber. In some embodiments, the inner shell 3730 may include a guiding plate 3734. In some embodiments, the guiding plate 3734 may be disposed on the edge of the outlet 3733 of the first gas channel. In some embodiments, the guiding plate 3734 may be disposed on the upper edge and / or side edge of the outlet 3733 of the first gas channel (e.g., the side edge closer to the gas inlet 3731 and / or gas outlet 3732 of the inner shell 3730). In some embodiments, the guiding plate 3734 may be used to guide the gas to flow downward to the housing below the lid 3700. Thus, the guiding plate 3734 may reduce the amount of gas flowing into other spaces (e.g., the space between the lid shell 3710 and the inner shell 3730). In some embodiments, the gas channel sealing frame 3740 may be connected to the inner shell 3730 to ensure airtightness between the inner shell 3730 and the housing 3710. In some embodiments, the gas channel sealing frame 3740 may be fixed to the inner shell 3730 by adhesion, riveting, tenoning, clamping, meshing, etc. or any combination thereof.

[0123] In some embodiments, the gas inlet 3731 (also referred to as the humidification component gas inlet) and the outlet 3733 of the first gas channel may be disposed on different side surfaces of the inner shell 3730. For example, as Figure 23A shown, the gas inlet 3731 may be disposed on the right side portion of the first side surface of the inner shell 3730, and the outlet 3733 of the first gas channel may be disposed on the left side portion of the second side surface of the inner shell 3730, wherein the second side surface of the inner shell 3730 may be adjacent to the first side surface of the inner shell 3730 in the clockwise direction. The gas inlet 3731 and the outlet 3733 of the first gas channel may be arranged as Figure 23A shown such that, regardless of how the breathing ventilation device is placed or moved, it is difficult for the liquid (e.g., water) in the housing to enter the main body of the breathing ventilation device. In some embodiments, the distance between the outlet 3733 of the first gas channel and the humidification component gas inlet may be greater than the distance between the outlet 3733 of the first gas channel and the humidification component gas outlet. In some embodiments, the first side surface of the lid shell 3710 of the liquid chamber may face the first side wall of the housing of the main body of the breathing ventilation device.

[0124] In some embodiments, the gas outlet 3732 (also referred to as the humidification component gas outlet) may be used to pass through the second gas channel (e.g., as Figure 23BThe gas passage indicated by the arrow) guides gas (such as humidified and pressurized breathing gas) back into the main body of the breathing ventilation device. As Figure 23B shown, the second gas passage (also referred to as the gas outlet passage) may include an inlet 3735. In some embodiments, the inlet 3735 of the second gas passage may be used to connect the second gas passage to the casing. Gas may flow from the liquid chamber into the second gas passage through the inlet 3735. In some embodiments, the first gas passage and / or the second gas passage may have a substantially rectangular cross-section. In some embodiments, the first gas passage and the second gas passage may cross each other.

[0125] In some embodiments, the gas outlet 3732 (also referred to as the humidification component gas outlet) and the inlet 3735 of the second gas passage may be provided on different side surfaces of the inner casing 3730. For example, as Figure 23B shown, the gas outlet 3732 may be provided on the left portion of the first side surface of the inner casing 3730, and the inlet 3735 of the second gas passage may be provided on the right portion of the third side surface of the inner casing 3730, where the third side surface of the inner casing 3730 may be adjacent to the first side surface of the inner casing 3730 in the counterclockwise direction. The gas outlet 3732 and the inlet 3735 of the second gas passage may be arranged as Figure 23B shown such that, regardless of how the breathing ventilation device is placed or moved, it is difficult for the liquid (such as water) in the casing to enter the main body of the breathing ventilation device. In some embodiments, the first gas passage and the second gas passage may be arranged to be non-parallel (such as intersecting) within the liquid chamber, so that the outlet 3733 of the first gas passage and the inlet 3735 of the second gas passage are in different directions. In some embodiments, the distance between the inlet 3735 of the second gas passage and the humidification component gas outlet may be greater than the distance between the inlet 3735 of the second gas passage and the humidification component gas inlet.

[0126] In some embodiments, the gas inlet and / or gas outlet of the lid 3700 (i.e., the humidification component gas inlet of the liquid chamber and / or the humidification component gas outlet of the liquid chamber) may be provided on the first side surface of the lid housing 3710 of the liquid chamber (corresponding to the first side surface of the inner housing 3730). In some embodiments, the outlet 3733 of the first gas channel and the inlet 3735 of the second gas channel may be provided on opposite side surfaces of the inner housing 3730. For example, the outlet 3733 of the first gas channel may be provided on the second side surface of the inner housing 3730, while the inlet 3735 of the second gas channel may be provided on the third side surface of the inner housing 3730. That is, the outlet 3733 of the first gas channel may face the second side surface of the lid housing 3710 corresponding to the second side surface of the inner body 3730, and the inlet 3735 of the second gas channel may face the third side surface of the lid housing 3710 corresponding to the third side surface of the inner housing 3730.

[0127] In some embodiments, as Figure 23B shown, a part or all of the bottom plate 3750 may be provided below the lower edge of the gas inlet 37311 and / or the lower edge of the gas outlet 37321 of the lid 3700. Therefore, the bottom plate 3750 can accommodate a part of the liquid in the box body, and the height difference between the bottom plate 3750 and the lower edge of the gas inlet 37311 and / or the lower edge of the gas outlet 37321 can prevent the liquid in the box body from entering the main body of the respiratory ventilation device. In some embodiments, the inner housing 3730 may include one or more third hooks 3736. The third hooks 3736 can be used to connect the gas channel sealing frame 3740 to the inner housing 3730. As Figure 23B shown, the inner housing 3730 may include three hooks 3736, and the three hooks 3736 may be equidistantly spaced apart at the bottom edge of the first side surface of the inner housing 3730.

[0128] Figure 24 shows an exemplary bottom plate of the inner housing of the lid according to some embodiments of the present disclosure. As Figure 24 shown, the bottom plate 3750 may include one or more sealing strips 3752 provided along the edge of the bottom plate 3750. The sealing strips 3752 can be used to improve the airtightness of the connection between the bottom plate 3750 and the inner housing 3730. In some embodiments, the bottom plate 3750 may include the bottom of the second gas channel (e.g., the second inclined plate 3751) and the bottom of the first gas channel (e.g., the remaining part of the bottom plate 3750 except the second inclined plate 3751).

[0129] Figure 25A and 25B shows an exemplary internal structure of the inner housing of the lid according to some embodiments of the present disclosure.Figure 25A Shows the intake channel of the lid 3700. Figure 25A Shows an upward view of the lid 3710 without the bottom plate 3750. Figure 25B Shows the exhaust channel of the lid 3700. Figure 25B Shows a cross-sectional view of the lid 3700. In some embodiments, the intake channel (i.e., the first gas channel indicated by the arrow as shown in Figure 25A may include a first part and a second part. The first part of the first gas channel may extend from the gas inlet of the lid 3700 (e.g., the first hole 3721) to a common plane (e.g., the common plane 3737 indicated by the parallelogram drawn with a dashed line in Figure 25A and 25B ). The second part of the first gas channel may extend from the common plane 3737 to the outlet 3733 of the first gas channel. In some embodiments, the second gas channel may include a first part and a second part. The first part of the second gas channel may extend from the inlet of the second gas channel 3735 to the common plane 3737. The second part of the second gas channel may extend from the common plane 3737 to the gas outlet of the lid 3700 (e.g., the second hole 3722).

[0130] In some embodiments, the first part of the first gas channel may be substantially parallel to the second part of the second gas channel in a direction having an angle (e.g., substantially perpendicular) with the first side surface of the lid housing 3710 of the lid 3700 (e.g., the side surface including the connecting frame 3713 as shown in Figure 22 ). In some embodiments, the second part of the first gas channel and the first part of the second gas channel may be disposed in different layers. In some embodiments, the first projection of the second part of the first gas channel on a horizontal plane and the second projection of the first part of the second gas channel on the horizontal plane may cross or at least partially overlap. In some embodiments, as shown in Figure 25A and 25B , the second part of the first gas channel may be disposed below the first part of the second gas channel. In some embodiments, the first part of the second gas channel may be disposed below the second part of the first gas channel. In some embodiments, the area of the first cross-section of the first gas channel located on the common plane may be equal to or less than a part (e.g., half) of the area of the gas inlet of the lid 3700 (e.g., the first hole 3721). In some embodiments, the area of the second cross-section of the second gas channel located on the common plane may be equal to or less than a part (e.g., half) of the area of the gas outlet of the lid 3700 (e.g., the second hole 3722).

[0131] In some embodiments, a first inclined plate 3739 may be provided between the first cross-section and the gas inlet of the can lid 3700 (e.g., the first hole 3721) (see Figure 23B and 25B ). The first inclined plate 3739 can be used to smooth the flow of the pressurized breathing gas in the first gas channel. In some embodiments, the first inclined plate 3739 (see Figure 23B and 25B ) can be provided as part of the inner shell 3730. In some embodiments, a second inclined plate 3751 may be provided between the second cross-section and the gas outlet of the can lid 3700 (e.g., the second hole 3722). The second inclined plate 3751 can be used to smooth the flow of the humidified and pressurized breathing gas in the second gas channel. In some embodiments, the second inclined plate 3751 (see Figure 24 and 25B ) can be provided on the bottom of the can lid 3700. For example, the second inclined plate 3751 can be part of the bottom plate 3750.

[0132] It should be noted that the above description of the can lid 3700 is provided for illustrative purposes only and is not intended to limit the scope of the present disclosure. Various changes and modifications can be made by those of ordinary skill in the art under the teachings of the present disclosure. However, these changes and modifications do not depart from the scope of the present disclosure. For example, as shown in FIGS. 26A and 26B, the inner shell 4230 of the can lid 4200 may not include a first inclined plate. As another example, the can lid 4200 may not include a second inclined plate. As another example, the bottom of the can lid 4200 may be at a horizontal plane with the lower edge of the gas inlet 4221 and / or the gas outlet. In some embodiments, the first inclined plate 3739 (see Figure 23B and 25B ) can be provided between the first cross-section of the can lid 3700 and the air inlet (e.g., the first hole 3721). The first inclined plate 3739 can be configured to smooth the flow of the pressurized breathing gas in the first gas channel. In some embodiments, the first inclined plate 3739 (see Figure 23B and 25B ) can be provided as part of the inner shell 3730. In some embodiments, the second inclined plate 3751 can be provided between the second cross-section of the can lid 3700 and the gas outlet (e.g., the second hole 3722). The second inclined plate 3751 can be configured to smooth the flow of the humidified and pressurized breathing gas in the second gas channel. In some embodiments, the second inclined plate 3751 (see FIGS. 24 and 25B) can be provided on the bottom of the can lid 3700. For example, the second inclined plate 3751 can be part of the bottom plate 3750. Figure 26A and 26B show another exemplary can lid according to some embodiments of the present disclosure.

[0133] Figure 27A and 27B illustrates an exemplary heating device according to some embodiments of the present disclosure. As Figure 27A shown, the heating device 4414 may be disposed on the substrate 4410 of the main body of the respiratory ventilation device. In some embodiments, at least a portion of the substrate 4410 may be disposed below the liquid chamber. The heating device 4414 may be used to heat the liquid in the liquid chamber and / or accelerate the evaporation of the liquid in the liquid chamber. In some embodiments, as Figure 27B shown, the heating device 4414 may include a bracket 4440, a heating plate 4420, and a fixing frame 4430. The fixing frame 4430 may be used to fix the heating plate 4420 to the bracket 4440. In some embodiments, the heating plate 4420 may be fixed to the bracket 4440 by one or more screws (or snap buttons) or any other fixing mechanism. The heating plate 4420 may include, for example, a stainless steel electric heating plate (mica electric heating plate), a ceramic electric heating plate, a cast aluminum electric heating plate, a cast copper electric heating plate, etc. or a combination thereof. In some embodiments, one or more springs 4460 may be disposed below the bracket 4440 such that the heating device 4414 can move up and down if pressure is applied to or removed from the heating plate 4420. More descriptions of the connection between the heating device 4414 and the substrate 4410 can be found elsewhere in the present disclosure (e.g., Figures 6A - 6D and its description).

[0134] Figure 28 illustrates an exemplary liquid chamber according to some embodiments of the present disclosure. In some embodiments, the liquid chamber 4500 may include a box body 4530. The box body 4530 may be used to contain one or more liquids. In some embodiments, the box body 4530 may include a heat conducting plate 4510. The heat conducting plate 4510 may be used to conduct the heat generated by the heating plate 4420 to the liquid in the box body 4530 so that the liquid can evaporate to generate steam for humidifying the breathing gas. In some embodiments, the heat conducting plate 4510 may be made of a heat conducting material, which includes, for example, one or more metals having heat conducting ability (such as copper, aluminum), heat conducting silica gel, etc. or a combination thereof. In some embodiments, one or more heat conducting coatings (such as heat conducting silica gel) may be disposed on the surface of the heat conducting plate 4510 to promote the thermal contact between the heating plate 4420 and the heat conducting plate 4510.

[0135] In some embodiments, the heat conducting plate 4510 can be fixed to the bottom of the box body 4530 by screws or glue. In some embodiments, the bottom of the box body 4530 may include a groove 4520. In some embodiments, the shape of the groove 4520 can match the shape of the heating plate 4420, so that if the box body 4530 is mounted on the bottom plate 4410, the heating device 4414 can be completely or partially captured in the groove 4520. Thus, the heating plate 4420 and the heat conducting plate 4510 can be tightly connected.

[0136] To reduce heat loss, it may be necessary to ensure that the heating plate 4420 and the heat conducting plate 4510 are in close contact with each other. As Figure 27B shown, one or more springs 4460 can be provided under the heating plate 4420. If the box body 4530 is mounted above the heating device 4414, the springs 4460 can be compressed, and the compressed springs 4460 can push the heating plate 4420 towards the heat conducting plate 4510, increasing the contact pressure between the heating plate 4420 and the heat conducting plate 4510 and ensuring close contact between them. In some embodiments, multiple elastic columns can be used instead of the springs 4460.

[0137] In some other embodiments, one or more heating rods, one or more electrodes or one or more ultrasonic atomizers can be directly installed in the box body 4530 to heat the liquid in the box body 4530. In some embodiments, the heating device 4414 can be coupled to (or electrically connected to) an electronic component. The controller can control the start, stop, pause, resume heating of the heating device 4414, the heating rate of the heating device 4414, the heating power of the heating device 4414, etc., to control the humidity of the breathing gas.

[0138] Having described the basic concepts as such, it will be apparent to those skilled in the art after reading this detailed disclosure that the foregoing detailed disclosure is presented by way of example only and not in a limiting sense. Although not explicitly stated herein, those skilled in the art may intend to make various changes, improvements, and modifications. These changes, improvements, and modifications are intended to be proposed by this disclosure and within the spirit and scope of the exemplary embodiments of this disclosure.

[0139] In addition, certain terms have been used to describe embodiments of the present disclosure. For example, the terms "one embodiment", "an embodiment", and / or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Thus, it should be emphasized and understood that two or more references to "an embodiment" or "one embodiment" or "alternative embodiments" in various parts of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be appropriately combined in one or more embodiments of the present disclosure.

[0140] Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of this application. Other modifications that may be employed are within the scope of this application. Thus, by way of example and not limitation, alternative configurations of the embodiments of this application may be utilized in accordance with the teachings herein. Therefore, the embodiments of this application are not limited to precisely those shown and described herein.

Claims

1. A respiratory ventilation device for delivering respiratory gas to a patient interface, characterized in that The respiratory ventilation equipment comprises: a gas pressurization unit positioned in a body of the respiratory ventilation device; and a humidification assembly removably connected to the main body of the respiratory ventilation device, the humidification assembly comprising a liquid chamber for containing one or more liquids, the liquid chamber being detachably connected to the main body of the respiratory ventilation device via a push-push mechanism, Wherein, the main body includes a heating plate, which is used to heat the one or more liquids. The heating plate is mounted on the base of the respiratory ventilation device through a spring or an elastic column. When the liquid chamber is mounted on the main body and connected through the push-push mechanism, the spring or elastic column is pressed so that the bottom of the liquid chamber is in close contact with the heating plate.

2. The respiratory ventilation device according to claim 1, characterized in that The gas pressurizing unit is configured to generate pressurized breathing gas by pressurizing breathing gas, and the main body of the respiratory ventilation device includes a housing having a first sidewall configured to discharge the pressurized breathing gas; wherein the humidification component is configured to humidify the pressurized respiratory gas; The respiratory ventilation device also includes: a gas inlet for introducing the breathing gas into the respiratory ventilation device, the gas inlet being provided on a second side wall of the housing of the main body of the respiratory ventilation device; and A gas outlet is provided for discharging the humidified and pressurized breathing gas into the breathing tube.

3. The respiratory ventilation device according to claim 2, characterized in that The push-push mechanism comprises: a guide groove provided on the body of the respiratory ventilation device; a slider provided on the main body of the respiratory ventilation device, the slider being located in the guide groove and being capable of moving forward and backward along a first direction in the guide groove; and A push rod is provided on the liquid chamber, and the push rod can move forward and backward along a second direction perpendicular to the first direction. The sliding block includes a guide block, which includes a first inclined surface, a groove and a second inclined surface. The guide block is used to guide or limit the moving position of the push rod.

4. The respiratory ventilation device according to claim 3, characterized in that The inclination direction of the first inclined surface is different from the inclination direction of the second inclined surface; and A first angle between the first inclined surface and a vertical direction is greater than a second angle between the second inclined surface and the vertical direction.

5. The respiratory ventilation device according to claim 3, characterized in that The guide block has a frame similar to the letter A.

6. The respiratory ventilation device according to claim 3, characterized in that The push-push mechanism further comprises: a first spring including a first end and a second end, the first end of the first spring being connected to the first end of the guide block, the second end of the first spring being fixed to the main body of the respiratory ventilation device; and a second spring, the second spring comprising a first end and a second end, the first end of the second spring being connected to the second end of the guide block, the second end of the second spring being fixed to the main body of the respiratory ventilation device, The second spring can be compressed when the guide block is driven to move along the first direction; and the compressed second spring can drive the guide block to move in a direction opposite to the first direction.

7. The respiratory ventilation device according to claim 3, characterized in that When driven by the first thrust, the push rod is capable of pushing the guide block to move along the first direction, and at the same time the push rod moves along the second direction and slides down along the first inclined surface of the guide block; When the first thrust is released, the push rod is able to move in a direction opposite to the second direction, and at the same time the guide block moves in a direction opposite to the first direction so that the push rod is stuck in the groove of the guide block; When the push rod is driven by a second thrust, the push rod is capable of moving in the second direction and moving out of the groove, while the guide block moves in the opposite direction of the first direction so that the push rod is released from the groove; and When the second thrust is released, the push rod can move in a direction opposite to the second direction and slide upward along the second inclined surface of the guide block, while the guide block moves in a direction opposite to the first direction, so that the liquid chamber is released from the body.

8. The respiratory ventilation device according to claim 7, characterized in that The sliding block further includes a protrusion located below the groove of the guide block, and the protrusion is used to guide the push rod to be clamped into the groove when the first thrust is released.

9. The respiratory ventilation device according to claim 3, characterized in that The push rod is arranged below the bottom surface of the liquid chamber; The guide groove and the slider are arranged below the interface between the liquid chamber and the main body of the respiratory ventilation device; a plate located on the interface including a first hole; and The push rod can pass through the first hole to interact with the slider.

10. The respiratory ventilation device according to claim 9, characterized in that The plate located on the interface includes a second hole; The heating plate is mounted on the base of the respiratory ventilation device by one or more springs, so that the heating plate can move up and down through the second hole when driven by pressure or when the pressure is released.

11. The respiratory ventilation device according to claim 1, characterized in that The push-push mechanism is configured to unlock the liquid chamber from the main body of the respiratory ventilation device by pushing the liquid chamber in a pushing direction substantially perpendicular to a liquid level in the liquid chamber.

12. The respiratory ventilation device according to claim 11, characterized in that The push-push mechanism is configured to include an energy storage device for storing energy of the pushing action and for releasing the stored energy after the liquid chamber is unlocked by exerting a force on the liquid chamber in a direction substantially opposite to the pushing direction.

13. The respiratory ventilation device according to claim 11, characterized in that The liquid chamber includes: a box body; and a box cover, which is pivotally connected to the box body through a connecting mechanism; wherein the box cover is configured to be closed by pushing along the pushing direction or to be opened by pulling along a direction substantially opposite to the pushing direction.

14. A respiratory ventilation device, characterized in that: include: a gas pressurizing unit positioned in a body of the respiratory ventilation device, the gas pressurizing unit configured to generate pressurized breathing gas; and a liquid chamber configured to contain one or more liquids to humidify the pressurized respiratory gas; Wherein, driven by the first thrust, the liquid chamber is mounted on the main body of the respiratory ventilation device through a push-push mechanism, Under the drive of a second pushing force, the liquid chamber is released from the main body of the respiratory ventilation device by the push-push mechanism, and The direction of the first thrust is the same as the direction of the second thrust, Wherein, the main body includes a heating plate, which is used to heat the one or more liquids. The heating plate is mounted on the base of the respiratory ventilation device through a spring or an elastic column. When the liquid chamber is mounted on the main body and connected through the push-push mechanism, the spring or elastic column is pressed so that the bottom of the liquid chamber is in close contact with the heating plate.

15. The respiratory ventilation device according to claim 14, characterized in that The liquid chamber is included in a humidification assembly that is removably connected to the body of the respiratory ventilation device.

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